EV Charging
Knowles delivers advanced capacitor technologies and filtering solutions designed to enable faster, safer, and more efficient EV charging infrastructure applications.
The Knowles Advantage
Knowles provides critical passive components that make high-performance charging possible. Our portfolio includes custom DC link capacitors optimized for Level 3 fast chargers, AEC-Q200 qualified multilayer ceramic capacitors (MLCCs) for filtering and snubber circuits, and safety-certified AC capacitors for grid isolation. With solutions engineered for high voltage, low inductance, and extended life (up to 200,000 hours), Knowles ensures your charging systems meet the toughest standards for speed, safety, and durability.
Knowles components for EV charging can be found in:
- AC/DC Conversion for Fast Chargers: Converts grid AC power into high-voltage DC for rapid EV battery charging.
- DC/DC Conversion Modules: Regulate battery voltage with bidirectional capability (vehicle-to-grid (V2G)).
- Wireless Charging Systems: Enable cable-free EV charging with efficient power transfer.
- Power Factor Correction (PFC) Circuits: Optimize power factor and reduce harmonics.
- EMI Filtering Solutions: Protects systems from charging-related interference.
Powering the Future of EV Charging
High-Performance Components for Reliable EV Charging Systems
Knowles delivers advanced capacitor technologies and filtering solutions that enable faster, safer, and more efficient EV charging infrastructure.
- Custom DC Link Capacitors for Fast Charging: High-voltage, ultra-low-inductance film capacitors for stable, long-life power conversion in Level 3 DC fast chargers.
- Snubber Capacitors: Low-inductance designs that protect IGBT and SiC power modules from voltage spikes.
- Filtering for Grid Compliance: AC harmonic filter and EMI/RFI suppression components minimize noise and meet stringent power quality standards.
- Safety-Certified MLCCs for Control Systems: High-voltage Y2/X1 MLCCs ensuring isolation and safety in charger electronics.
- High-Power Conversion Expertise: We have years of experience providing custom capacitor assemblies optimized for 200 – 350 kW DC fast charging.
Educational Resources
Why Bidirectional Charging for EVs Requires Special Attention to Design
Resonant Capacitors: Your Key to Building Stable and Reliable Wireless EV Charging Technology
The Evolution of Electric Vehicle Battery Management Systems: From Passive to Active Cell Balancing
AEC-Q200: Automotive Grade Capacitor Catalog
Making EV Wireless Charging Systems a Reality
Power Conversion Capacitors for Harsh Environments
How to Size a Snubber Capacitor for Your Power Supply
Ensure the Reliability of Your EV Electronic System with Knowles
Supporting World-Wide Electric Vehicle Innovation
Knowles Safety Capacitors
Product Documentation
EV Charging Levels
Capacitors for EV DC Fast Chargers
Capacitors for EV Applications
Custom DC Link Capacitors
Reach Out To Us
Can't find what you are looking for? Let us know how we can help.
Distributors & Reps
Knowles utilizes a global network of Distributors and Sales Representatives — find the one nearest you.